Abstract: This study designed and evaluated a user-centered augmented reality (AR) wayfinding prototype for Leeds University Union (LUU), aiming to improve student wayfinding efficiency and encourage social exploration within a particular campus environment. A site-specific field study involving photographic documentation of existing wayfinding aids, such as signage and maps, was conducted to investigate the current design. Five semi-structured interviews were carried out to gain students’ experiences and opinions, complemented by behavioral observations of three participants navigating the LUU with existing wayfinding aids to explore common challenges and dilemmas. Results showed that the existing design did not consistently support effective navigation, with participants relying on assistance from others. Furthermore, all of the students reported using the LUU mainly for social and recreational purposes, indicating that integrating navigation with real-time event information could enhance campus community engagement. In response, a prototype mobile navigation application named LUU MATE was developed that integrated AR with social exploration features to enhance both wayfinding and engagement in campus life. The iterative optimization of the prototype was based on usability tests conducted by four participants. Subsequently, a second behavioral observation was conducted with three participants using LUU MATE to assess its navigation effectiveness and potential to foster social engagement. Comparative analysis with earlier observations showed that LUU MATE reduced the time required to complete the navigation tasks and stimulate participants’ interest in campus life. This study indicates that both navigation efficiency and social engagement are essential considerations in campus wayfinding design. Future research should involve larger and more diverse participant groups and apply the design across varied campus sites to validate its broader applicability.